GNU bug report logs - #77732
grep-edit-buffer errors with incionsistent behaviour

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Visuwesh <visuweshm <at> gmail.com>
Cc: johann.hoechtl <at> gmail.com, 77732 <at> debbugs.gnu.org
Subject: bug#77732: grep-edit-buffer errors with incionsistent behaviour
Date: Sat, 12 Apr 2025 13:26:14 +0300

> From: Visuwesh <visuweshm <at> gmail.com>
> Cc: johann.hoechtl <at> gmail.com,  77732 <at> debbugs.gnu.org
> Date: Fri, 11 Apr 2025 21:42:51 +0530
> 
> [வெள்ளி ஏப்ரல் 11, 2025] Eli Zaretskii wrote:
> 
> >> From: Visuwesh <visuweshm <at> gmail.com>
> >> Cc: Johann Höchtl <johann.hoechtl <at> gmail.com>,
> >>   77732 <at> debbugs.gnu.org
> >> Date: Fri, 11 Apr 2025 18:01:27 +0530
> >> 
> >> I inserted a few message statements (see patch below), and I cannot
> >> figure out where the sudden addition in the compilation-message is
> >> coming from.
> >
> > Which addition is that?  I'm afraid you lost me here.
> 
> Oops, I butchered the statement: after the second time you type 'e', the
> "Grep finished..." message attains a non-nil compilation-message
> text-property.
> 
> > Can you explain which line of code causes the error, and why?
> 
> That's what I tried to figure out by adding the message statements but I
> fail to understand how the compilation-message text-property is being
> Added.  The relevant bits from *Messages* is at the end.
> 
> When I say 'e' for the first time then go back to grep-mode with C-c
> C-c, there's no extra compilation-message text-property.
> 
> When I say 'e' for the second time around, till the end of
> grep-change-to-grep-edit-mode, there's no extra compilation-message
> text-property (lines marked with *).  But in the gap between
> grep-change-to-grep-edit-mode and me saying C-c C-c (with no other
> action being done by me in between), the extra compilation-message
> text-property is added to the "Grep finished..." line.

I'm guessing this is font-lock (called via jit-lock mechanism)?

Maybe you should do something with font-lock-extra-managed-props?

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